Never had a single one of those issues when I played the game and the only issue I did have that seemed to occur every new play through was right at the start where Killer Croc would suddenly become transparent or even invisible during his boss section. After starting a replay of AO just last week I can confirm this is now fixed. Actually now I think back I do recall having a problem where if I enabled DirectX 11 on one specific setting Batman's cape would disappear from view. This was quickly fixed when I changed to a newer driver set. The infamous Burnley vent issue was fixed a mere few days after it launched as not one but two patches came out within a week of the game being released. Aside from these problems the game was 100% playable for me personally.